Hot Spring® IQ Sensor Replacement

Keep your spa’s water perfectly balanced with the FreshWater IQ Replacement Sensor, specifically designed for Hot Springs® spas equipped with the FreshWater IQ Smart Monitoring System. 12‑Month Lifespan – Designed for up to one year of continuous operation, but actual lifespan depends on use, water chemistry, and bather load. Real-Time Monitoring – Measures chlorine, pH, and salt levels hourly to give on-display guidance, helping you maintain clean, natural-feeling water. Easy Swap Design – The sensor slides into your existing IQ controller. No additional hardware needed—just power off, swap, and power on. OEM Quality – Genuine replacement part from Watkins/Hot Springs; ensures proper calibration with the salt system and topside controller.